Report

FZJ-2016-05967

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Study on temperature coefficients of actinide burning HTGRs

Fujimoto, N. ; Yamashita, K. ; Rütten, H.-J.FZJ*

1997
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/12741

Report No.: Juel-3449

Abstract: HTGRs have the potential to achieve a high transmutation ratio, burning transuranium isotopes. The main reason is the large burnup, which is achieved by the fuel in the form of coated particles. In view of inherent safety features temperature coefficients have been studied for HTGR-fuel containing Pu and Minor Actinides in various fuel specifications in each case aiming at a high Pu burning ratio. The performed cell bumup calculations indicate, that HTGRs have the potential to achieve a high transmutation potential. In view of the temperature coefficients U$^{238}$ as breed material has an advantage compared to Th$^{232}$, maintaining a negative temperature coefficient even at a very high fuel burnup. In order to maximize the yearly depletion rate of Pu, small amounts should be loaded to the fuel elements without U. For utilizing Pu effectively, i.e. to achieve a long burnup cycle and a high burnup of the Pu loaded to the fuel elements, a high heavy metal loading including U as breed material is adequate.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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Database coverage:

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